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arXiv 1202.0367hep-phhep-ex
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顶尖物理学的有效场论

Effective field theory for top physics

P. Ko

摘要:

我们研究了CDF和D 0合作组织在有效拉格朗日方法中报告的顶部向前向后不对称性(FBA $\equiv A_{\rm FB}$)。利用6维有效拉氏算符计算了$q \bar{q} \rightarrow t \bar{t}$的$t\bar{t}$产生截面和$A_{\rm FB}$,以及与$A_{\rm FB}$强相关的FB自旋-自旋关联和作为手征结构新探针的纵向顶极化.

英文摘要:

We study the top forward-backward asymmetry (FBA $\equiv A_{\rm FB}$) reported by CDF and D0 Collaborations in the effective lagrangian approach. Using dimension-6 effective largrangians for $q \bar{q} \rightarrow t \bar{t}$, we study the $t\bar{t}$ production cross section and the $A_{\rm FB}$, and a few observables: the FB spin-spin correlation that is strongly correlated with the $A_{\rm FB}$, and longitudinal top polarization as a new probe of chiral structures for possible new physics scenarios.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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